Lantern



FIG. 1 is a top, front, right side perspective view of a lantern showing my new design;

FIG. 2 is a front elevation view thereof, shown at an enlarged scale;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof,

FIG. 5 is a left side elevation view thereof; and,

FIG. 6 is a top plan view thereof.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a lantern, as shown and described. 